Cloud native IPC for Microservices

This workshop focuses on modern and efficient Inter Process Communication (IPC) for microservices. We start with a REST API, built using JAX-RS and Quarkus to briefly discuss the pros and cons of this approach. Then, we will extend the API with an efficient Protobuf payload representation in order to finally transform the API into a fully fledged high-performance gRPC interface definition. But that’s not all! To put some extra icing on the cake, this workshop will demonstrate how to consume the gRPC service from a JavaScript web client and also how to completely generate a matching REST API from an enhanced gRPC interface definition to ensure full interoperability in a microservice architecture.

Mario-Leander Reimer


Principal Software Architect

Passionate developer. Proud father. #CloudNativeNerd. Leander is continuously looking for innovations in software engineering and ways to combine and apply state-of-the-art technology in real-world projects. As a speaker at national and international conferences, he shares his tech experiences and he teaches cloud computing and software quality assurance as a part-time lecturer.

What the attendees will learn

- Pros and Cons of resource-oriented APIs as well as RPC APIs

- Key attributes and strengths of Protocol Buffers and gRPC

- How to define and use Protocol Buffers as efficient serialization format with Quarkus and JAX-RS

- How to define and use gRPC services with Quarkus on client as well as server side

- Useful architectural patterns for gRPC <-> REST Integration

- Useful frameworks for seamless interoperability: gRPC Gateway and gRPC Web


- Solid Java programming skills, experience in languages like Go or TypeScript are not required but useful

- Working Java Development environment with IDE (IntelliJ, VS.code) and JDK 11

- Local Docker & Kubernetes Installation, e.g. Docker Desktop, Minikube, Rancher Desktop, or similar

- Additional small CLI tools (Kubectl, Skaffold or Tilt, Buf) but can be installed during workshop

Companies using this technology

Google, Netflix, Salesforce, Mux, Nulab, CoreOS, Cockroach Labs, Cisco, Juniper Networks, …

Workshop Plan

- Brief introduction, workshop agenda and tech check

- Discussion of REST and gRPC (and other IPC mechanisms) with pros and cons

- Define and Implement Protobuf Serialization with Quarkus and JAX-RS

- Define and Implement gRPC API with Quarkus

- Generate and build a matching REST API Gateway (in Go) for the gRPC service

- Generate and build a gRPC Web client (in TypeScript) for the gRPC service

- Wrap-up and Outlook


Cloud native IPC for Microservices

Date and time:

Wednesday 27th

16:30 -18:30


JakartaEE, REST, gRPC, JAX-RS, Microprofile, Microservices, Quarkus

Target audience roles:

Cloud-native Nerds, Software Engineers, Software Architects, Technologists,etc.




Coffee and tea

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Polo de Contenidos Digitales Málaga
Av de Sor Teresa Prat, 15, 29003 Málaga


FYCMA - Palacio de Ferias y Congresos de Málaga
Av. de José Ortega y Gasset, 201, 29006 Málaga